Tuhhet-box machine



Dec. 3, 1929. w. A. SAATMAN 1,737,615

TURRET Box MACHINE Filed Aug. 6, 1926 ll Sheets-Sheet 1 w. A. SAATMAN 1,737,615

TURRET BOX MACHINE Filed Aug. 6, 1926 Dec. 3, 1929.

11 Sheets-Sheet 2 Dec.3, 1929, w. A. SAATMAN TURRET BOX MACHINE Filed Aug. 6, 1926 11 Sheets-Sheet 3 MWZJM/u/a Dec. 3, 1929, w. A. SAATMAN 1,737,615

TURRET BOX MACHINE Dec. 3, 1929 w. A. SAATMAN 1,737,615

TURRET BOX MACHINE Filed Aug. 6, 1926 11 Sheets-Sheet 5 7 21 131 flblr .jaafi/za/a Dec. 3, 1929. w. A. SAATMAN 1,737,615

TURRET BOX MACHINE Fil led Aug. 6, 1926 '11 Sheets-Sheet f G 174 I65 4 Dec. 3, 1929. w. A. SAATMAN 1,737,615

TURRET BOX MACHINE Filed Aug. 6,- 1926 11 Sheets-Sheet 9 Dec. 3, 1929.

w. A. SAATMAN TURRET BOX MACHINE Filed Aug. 6, 1926 11 She ets-Sheet l0 lnHlllH til J V Li Jaw W Dec. 3, 1929. w. A. SAATMAN 1,737,615

TURRET BOX MACHINE Filed Aug. 6, 1926 ll Sheets-Sheet .11

Patented Dec. 3, 1929 PATENT OFFICE WALTER, A. SAATIEAN, OF ROSLYN, PENNSYLVANIA TURZRET-BOX MACHINE Application filed August 6, 1926. Serial No. 127,551.

My invention relates to an automatic box wrapping machine.

A purpose of my invention is to apply a wrap to the sides and ends of a box while it is upon a form carried by a turret.

A further purpose is to apply a wrap to the bottom of a box by the rolling motion of a turret, presenting the wrap glue side out upon a registry roll by the engagement between the wrap and the bottom of the box carried by the moving turret.

A further purpose is to mount box forms upon the arms of a three-way turret to feed unwrapped boxes to the forms at the present position of dwell, to apply a wrap to one edge of the bottom of the box on each form in its second position of dwell, to transfer a wrap to the bottom of the box by rolling motion of the turret as the turret moves from second to third position of dwell, and to wrap up the sides and ends of the box in the third position of dwell. I preferably apply a shut down safety device between the first and second position.

A further purpose is to position a registry or wrap-delivery roll, to resiliently press a wrap wound upon the roll against the bottom of a box on a form carried by a turret during a dwell of the turret and during the next movement of the turret to unwind the wrap to the bottom of the box in rotating the roll by its resilient engagement with the bottom of the box.

A further purpose is to apply boxes of variant size to a turret so that the bottoms and forward ends of the boxes are in the same position irrespective of variation in size of box, and to register box wraps upon a wrap-delivery roll in respect to the unchanging position of the line of intersection between the bottoms and forward ends of the respective boxes during one position of dwell of the turret, and to register one end of endand side-wrapping mechanism, commonly called side-wrapping mechanism in the unchanging plane of the forward sides or ends of the boxes during another position of dwell of the turret.

A further purpose is to mount a wrap gripper and a registry roll upon a common axis, synchronizing the gripper to take hold 01 an approaching wrap to turn the gripper and registry roll as a unit to definite registered stop so as to register the wrap with the bottom of a box upon a form carried by a turret.

A further purpose is to mount a registry roll to swing about its driving shaft and to provide it with a wrap gripper on arms adapted to turn around the axis of the roll.

A further purpose is to accommodate differences in box depth by adjusting the angular position of the arms of a gripper with respect to the dwell of a driven intermittent driving the arms and to make a corresponding reverse adjustment in the angular position of the driving intermittent gear in order to maintain the position of gripping unchanged. 1

A further purpose is to avoid engagement between a glued wrap and any form that does not carry a box by automatically shutting down the mechanism presenting the wrap and the feed of wraps to the mechanism.

further purpose is to provide grippers that extend out to grab an incoming wrap, then move down to the circumference of a registry roll, and travel around with the registry roll to a definite stop and to vary the position of the stop according to the depth of the box.

A further purpose is to apply drag fingers to the wrap upon the registry roll to maintain the wrap upon the roll.

A further purpose is to mount box forms upon hollow arms and to operate box grippers through the hollow arms.

A further purpose is to support box forms upon offset turret arms.

A further purpose is to wrap corner-laps with continuous rotary motion, preferably using a notched disc bevelled at the notch.

A further purpose is to turn in the tops of the wraps over the box by reaching inside the box and pulling outwardly against pressure blocks outside of the box.

A further purpose is to mount a side wrapping unit to operate with continuous crank motion and, in one position of dwell of a turret carrying a box upon a form, to raise the wrapping unit brushing and rolling up the long sides, turning the corner laps and brushing and rolling up the short sides.

A further purpose is to strip the box from a form carried by a turret and support the box, all during the downward stroke of side wrapping mechanism, and during the continuing down stroke of the mechanism to turn in the upper edges of the wrap over the sides of the box.

A further purpose is to strip the. box from its form, after applying the wrap over the sides of the box, by means of rods vertically descending in or through perforations in the form upon each side of the turret.

A further purpose is to apply turn-in clamp mechanism throughout a portion of the down stroke of side wrapping mechanism and throughout a portion of the next up stroke of the mechanism.

A further purpose is to push a wrapped box to a delivery belt or point by its engagement with the next box.

A further purpose is to carry brushes, rolls, corner-lapand turn-in mechanism upon a Verticallymoving carriage comprising front and rear carriers and side carriers, adjusting for change in width of box by rearward and forward adjustment of the rear carrier and adjusting for change in length of box by lateral adjustment of the side carriers.

A further purpose is to automatically adjust the lateral brushes of a side wrapping unit about half way between the front and rear brushes so that the high bristles engage the middle of the short sides of a box.

A further purpose is to operate the cornerlap and turn-in mechanism of side wrapping mechanism by the vertical motion of a carrier of the mechanism.

A further purpose is automatically to maintain resilient pressure upon the side roll central with respect to the box.

A further purpose is to make offsetting adjustment in a crank operating the vertical movement of side wrapping mechanisn in order to adapt the mechanism to operate upon boxes of different depths.

A further purpose is to operate turn-in and box support mechanism from the same shaft, preferably operating the box support mechanism near the dead center of the turn-in mechanism.

A further purpose is to spring-counterweight side wrapping mechanism and to increase the arm of the spring as the mechaiism moves up and the spring weakens from extension.

A further purpose is to adapt inner turnin members to variant box dimensions and to removably support the turn-in mechanism to facilitate adaptation to different sizes of box.

A further purpose is to mount a turret upon a hollow shaft and to operate box strippers by means of a shaft through the turret shaft.

A further purpose is to perforate a box form to receive a threaded turret arm and to removably clamp the form to the arm between a pivoted cross bar and a nut carried by the arm, the cross bar being pivoted to the end of the arm and adapted to turn axially into position to pass through the perforation.

A further purpose is to provide for small screw adjustments of a form to secure exact registry between the form and the surface of a wrap-applying roll.

Further purposes will appear in the specification and claims.

I have preferred to illustrate my invention by one form only, but have selected a form which is efficient and practical in operation and which illustrates particularly well the principles involved.

Figure 1 is a diagrammatic elevation to illustrate the cycle of operation.

Figure 2 is a broken left side elevation with some parts removed.

Figure 2 is a fragmentary detail section taken upon the line 2-2' of Figure 2 to illustrate a detail of operating mechanism of the box support rods.

Fi uro 3 is a fragmentary section taken upon the line 83 of Figure 2 in the direction of the arrows.

Figure 4 is a broken right side elevation.

Figure 5 is a fragmentary section taken on the line 5+5 of Figure 4 illustrating cam and clutch mechanism.

Figure 6 is a front elevation.

Figure 7 is a section of Figure 6 taken upon the line 77 in the direction of the arrows.

Figures 7 and 7 are fragmentary detail views of gripper mechanism and are respectively a top plan view and a vertical section upon the line 7 7 of Fig. 7.

Figure 8 is a top plan View with some parts removed.

Figure 9 is a fragmentary section to enlarged scale taken upon 9-9 of Figure 8.

Figure 10 is a fragmentary section to enlarged scale on line 10-1O of Figure 8, or 10-10 of Figure 6, being a continuation of structure shown in Figure 9.

Figure 11 is a right end elevation of structure shown in Figure 10.

Figure 12 is a section to enlarged scale taken upon the line 12-12 of Figure 6, with the back carrier moved forward.

Figure 13 is a fragmentary section taken upon the line 13-13 of Figure 12.

Figure 14 is a section of Figure 6 upon the line l t-14:.

Figure 15 is a section taken upon the line 1515 of Figure 12, to the same scale as Figure 12, but not showing the front carrier.

Figure 16 is an elevation of a turn.in disc.

Figure 17 is a broken section to enlarged scale taken upon the line 1717 of Figure 2.

Figure 18 is a section taken upon the line 1818 of Figure 1'? to show left-hand operating mechanism of the gripper and operating mechanism of the drag fingers.

Figure 19 is a section upon the line 19-19 of Figure 1? illustrating the right-hand operating structure of the gripper.

Figure 20 is a section on the line 20-2O of Figure 17 showing structure for angular adjustment of the gripper arm.

Figure 21 is an opposite or left hand view to enlarged scale of the safety automatic clutch mechanism, shown dotted in Figure 4, being a section upon the line 21-21 of Figure 22.

Figure 22 is a section on the line 2222 of Figure 21.

Figures 23 and 24 are diagrammatic sectional plans taken upon the lines and 2l2l respectively of Figure 7 with parts removed for greater clearness.

Figure is a left end view of Figure Q -l.

Figure 26 is a detail section taken upon the line 262G of Figure 13 illustrating the str cture for automatic adjustment of the side brushes and of a spring support of the side brushes as well as structure of the corner-lap discs.

Figure 27 is a diagrammatic elevation showing turn-in clamp structure, corresponding to a section upon the line 2T27 of Figure 28.

Figure 28 is a fragmentary diagrammatic section taken upon the line 2S28 of Figure 27 and of reduced scale.

Figure 29 is a diagrammatic detail plan illustrating the resiliently balanced support of the side rolls.

Like numerals refer to like parts in all figures.

Referring to the figures and describing in illustration and not in limitation Supporting structures and driving mechanisms may be widely varied without departing from my invention and for this reason as well as for greater clearness I have omitted such structures and mechanisms.

Here a suction roll l0 delivers a wrap from a suitable pile of wraps 4:1 to the grip per on the main cylinder d3 of the glue machine.

The main cylinder of the glue machine, turning in the direction of the arrow carries the wrap, held to place by the gripper 42, past the rider wheel ll and delivers it to the picker plate lf) which guides it to the glueapplying roll 16.

The glue-applying roll is maintained uniformly coated with glue as by means of a dip 1 ,l a"? dipping into a glue pot l8 and enaging a tran fer roll 49 that in turn engages tie-applying roll. A squeeze roll 50 mg the surface of the glue-applying roll after it has passed the transfer roll smooths out the glue upon the glue-applying roll, in a manner well understood and not relevant to the present invention.

The wrap received by the glue-applying roll from the picker plate 5 is removed from the glue-applying roll by suitable strippers 51 which guide it into the open jaws of a gripper 52.

This gripper, is swinging clockwise upon an arm 53 when it receives the wrap, for the time moving as one with the registry or wrap-applying roll in about the axis of the registry roll and is synchronized to seize the edge of the approaching wrap, turning inwardly on its own axis anti-clockwise to bring the edge of the wrap to the surface of the roll while continuing its travel as one with the roll around the roll axis.

As the gripper 52 passes beneath drag fingers 55 which are spaced along a shaft 56, these drag fingers move down and resiliently engage the wrap behind the gripper.

The arm 53, the gripper 52 carried by the arm and the registry roll 54; move around as a unit to a definite stop and then stop as a unit in position to re 'ister the wrap with the bottom of a box 57 upon one of the box forms 58 carried by the turret 59.

After coming to a stop the registry roll swings to the right upon a rocker arm 60 about pivot 61 under the action of a spring 62 which resiliently maintains roller engagement at 63 between the rocker arm and a cam (54 which is conveniently carried upon the shaft 65 of the main cylinder 43 of the glue machine.

This motion to the right loosens the fastening between the gripper arm 53 and the registry roll 54 and continues until the registry roll engages the lower corner 66 of the box 57 upon one of the forms 58 of the turret. The turret is stationary at the moment of engagement with the registry roll, but after engagement starts to move in the direction of the arrow to its next position, making rolling engagement with the registry roll upon the glued surface of the wrap, the registry roll being now free to turn upon its shaft 67 without affecting the position of the gripper arm 53.

After the registry roll has swung over into contact with the box upon the form 58 the gripper 52 loosens its hold upon the wrap and the form of the cam (ll is such that the rolling surface of the registry roll maintains resilient pressure against the bottom of the box carried upon the form, rolling the glued wrap upon the bottom of the box, and maintaining a uniform slight clearance between roller and cam at (33.

The box is shown held in place on its form by a box gripper (58 which makes gripping engagement with the box, clamping the box to the form as soon as the box has left the registry roll. These gripers may be operated by a suitable cam 69 mounted on a sleeve upon the shaft of the turret, and when used loosen and move out of the way in time to avoid engaging the wrap during the wrapping operatron.

The turrent in moving to the next dwell brings the box to rest in the third position in which the box is presented vertically to the wrapping mechanism which now moves upwardly to wrap up the sides while the box is still on its form.

As the wrapping mechanism moves upwardly the long-side brushes 70 followed by the rolls 71, sweep up the long sides of the box front and rear and the corner-lap discs 72 follow turning in the edges of the wrap around the ends of the box.

The corner-lap discs are followed by he short-side brushes 78 and the short-side rolls 7%, all of this while the box is upon the stationary form 58 carried by the turret.

The wrapping mechanism moves upward.- ly until the pressure blocks 7 9 are at the top of the box when the supporting rods 77 move underneath the box and the stripper roes 75, which have been moving downv-rardiy through suitable perforations 7 6 in the box form, come into contact with the bottom of the box and continue to move downwardly with the now downwardly moving wrapping mechanism and supporting rods.

The supporting rods '77 and the whole wrapping mechanism move down with the box strippers 75, the form 58 remaining stationery and the strippers spring-pressing the bottom of the box against the supporting rods.

After the box has been thus stripped from the form the strippers are pulled up through the perforations 76 in the form and the turret moves to its next position.

WVhen the box is clear of the form, turn-in clamps 7 8 turn in the upper edges of the wrap over the sides of the box and spring-clamp the turned in edges against outside pressure blocks 79 fitting around the box to support the strong clamping pull of the turn-ins 78.

The turn-in chimps loosen and move back, out of the box before the wra iiping mechanism engages the next box, which engages and pushes away the box already wrapped to fall upon a suitable belt conveyor 8 for delivery to any suitable receptacle, the supporting rods 77 moving out of the way to permit delivery of the wrapped box.

During each period of dwell of the turret, the form on first position (at the right) receives an unwrapped box from an operator, a box onthe form in second position (at the left) is engaged by a glued wrap u ion the registry roll, and a wrapupon the bottom of the box on the form in third position (in the middle) is applied up the sides of the box and the box is then stripped from its form.

During each turning movement of the turdwell is avoided and the feed of additional wraps is stopped.

The rolling engagement between the bottom of the box carried on the form moving from second to third position of dwell and the glued surface of the wrap on the registry roll applies this wrap to the bottom of the box.

If a box gripper 68 is used it will normally operate to clamp the box to the form as the box leaves the registry roll and to open and move out of the way during the next period of dwell.

The unwrapped boxes are applied to the successive box forms at the first position of dwell, the unglued wraps picked up automatically from a pile 41 are successively rolled on to the bottoms of the boxes by the registry roll pressed against and turned by the box bottoms, the sides are automatically wrapped and the turn-ins around the top are automatically effected by vertical up and down movement of mechanism beneath the third position of dwell and the finished boxes are delivered by the belt conveyor 80.

I now describe the structure illustrated in Figures 2 to 27 which embodies my invention in a particularly advantageous form.

Frame The main frame (Figures 2, at, 6, 7 and 8) is shown as comprising right and left sides 82 and 83 respectively. These sides are tied together at the back by feed mechanism not shown, and also by the main driving shaft 84:, the shaft 85 of the turret 86, the driving shaft 87 of the registr roll, and the rocker shaft 88 that raises and lowers the carriage 89 of the wrapping mechanism.

The drive The main driving shaft 8% (Figures 2, 4, 6, 7 and 8) carries a worm gear 90 meshing with a worm 91 on a s left 92 driven by a motor, not shown, preferably mounted upon the side 82 of the frame.

The shaft 84- carries keyed to it a gear 98 which meshes with a gear 94 mounted upon a stud 95 in the frame member 82. The gear 94; is integral with a Geneva gear 96 and carries a roller 97 upon a pin 98 to drive a Geneva wheel 99.

The shaft 84-, gears 93 and 94 and theGeneva gear 96 rotate continuously, resulting in intermittent drive of the Geneva wheel 99.

integral with the Geneva wheel 99 is a gear 100 which meshes with a gear 101 keyed to the hollow shaft carrying the turret 86. There is a two to one ratio between the gears and 101 so that the six-way Geneva wheel gives three-way drive to the turret.

The gear 94 which is continuously driven by the gear 93 has clutch connection with a gear 102 which is in driving mesh with a gear 103 rigidly mounted on the driving shaft 87 (Figures 4 and 17) of the registry roll and with a gear 104 mounted on the shaft 65 of the main glue cylinder 43.

This clutch connection between the gears 94 and 102 which is automatically disconnect ed every time one of the box forms 58 on the turret approaches the registry roll if there be no box on the form so that whenever there is no box on an approaching form, the registry driving gear 103 and the driving gear 104 of the main glue cylinder both stop.

The main drive shaft 84 extends from side to side of the frame and at one end carries a crank 105 which raises and lowers the carriage 89 of the wrapping mechanism, shoes in the right and left ends 107 and 108, respectively, of the carriage sliding up and down in vertical guides 109 and 110 of the frame structure.

The crank 105 is connected by a link 111 to the crank arm 112 keyed to the rocker shaft 88 which extends from side to side of the frame and carries keyed to it arms 113 and 114 that are connected by links 115 and 116 to the respective ends 107 and 108 of the carriage so that the carriage is raised and lowered once for each revolution of the driving shaft 84.

At the right side the driving shaft 84 carries a cam 117 (Figures 4 and 6) to operate the stripper mechanism for stripping off the boxes from the box forms 58. by means of hell crank 118 spring-pressed at 119 into roller engagement at 120 with the cam and operating a link 121 and toothed sector 122 keyed upon a shaft 123 that operates the stripper mechamsm.

On the left inside of the crank 105 there is a face cam 124 (Figure 2) which oscillates a horizontal link 125 guided at 126 and having a rack 127 at its right-hand end. This rack oscillates a pinion 128 to effect motion of the support rods as described later.

The shaft 84 carries inside the left frame member a cam 129 (Figure 8) which by means of an arm 130 mounted upon the lower end of a vertical shaft 131 (Figure 6) oscillates a toothed sector 132 to operate member 133 which meshes at its other end (by rack) with gear teeth 134 upon a sleeve 135 carrying cam 69 which operates the box grippers 68 (see Figures 6, 8, 9 and 10).

The wrapping mechanism includes brushes, rollers and turirin clamps at each side and the corner-lap discs at the ends; also the supporting rods which are moved beneath the box before the strippers remove the box from the form and support the box during the operation of the turn-in clamps.

The mechanical operations include giving proper turn-in and clamping motion to the tl1111i11 clamps and proper motion back and forth to the supporting rods.

The corner-lap discs 72 and the turn'in clamps 7 8 are operated by the up-and-down motion of the carriage in the frame. A vertical rack 136 (Figures 6, 8 and 23) is fastened to the left side of the frame and meshes with a pinion 137 on a shaft 138 which operates the corner-lap discs, driving the shaft 139 of the rearward corner-la p discs through bevel gears 140 and 141 and the shaft 142 of the forward discs through the bevel gears 143 and 144.

The front and rear turn-in clamps are operated by means of a bell crank 145 (Figure 4), carrying a roller 146 rolling in a stationary cam slot 147 in a member 148, fastened to the right side of the frame.

This bell crank 145 carries a bevel sector 149 which meshes with a bevel. gear 150 upon the shaft 151 that operate the front and rear turn-in clamps.

The right and left side turn-in clamps are operated by a similar bell crank 152 (Figure 2) having a roller 153 rolling in a slot 154 of a cam member 155. The bell crank 152 is pivoted at 156 and carries a toothed sector 157 which meshes with a spur pinion 158 keyed to the shaft 159 which operates the side turn-in clamps.

Carriage The carriage 89 is best seen in diagrammatic Figures 23 to 26 taken in combination with Figures 2, 4, 6 and 7.

Itcomprises right and left end plates 107 and 108 tied together by the front and rear tie rods 160 and 161 at the ends, by the front and stationary carrier 162 and to lesser extent by the transverse shaft 159 operating the side turn-ins, the transverse shaft 163 cross connecting the screw shafts 164 and 165 and the rear carrier 166.

Each end plate extends upwardly at the rear end to journal the transverse shaft 163 at 167 and to provide end hearing at 168 for one of the screw shafts 164 and 165.

Each plate ext-ends upwardly near the front to receive a projection pin or lug 169 in the adjoining end of the front and stationary carrier 162.

The left-hand end plate 108 carries the stud 156 supporting the bell crank sector 152 for operating the side turn-ins and the support rods, while the right-hand plate carries the stud 170 which supports the bell crank 145 operating the front and rear turn-in clamps.

The apron or front and stationary carrier 162 is provided with spaced brackets 172 (Figure 12) carrying the front roller, and also carries the bearings 173 and 174 (Figure 23) supporting the shaft 142 carrying the forward corner-lap discs which are splined on the shaft 142 and positioned along the shaft by the respective side carriers 175 and 176 (Figure 6).

I11 the middle in front at 177 (Figures 23 and 24) the apron also supports mechanism of the front and stationary turn-in clamp 78.

The right andleft side carriers 175 and 176 (Figure 6) are counterparts, and are mounted at 179 and 180 between and by rack and pinion adjustment slidable along the tie rod members 160 and 161 (Figures 2, 4, 7, 12 and 14). A shaft 181 (Figures 12 and 26) having opposite ends journaled at 182 and 183 (Figure 26) in the carrier carries pinions 184 (Figure 14) meshing in rack teeth 186 upon the respective tie rods, and a handle 187 for rolling the carrier along the tie rods.

The rear carrier 166 is adjustable forward and rearward along the screws 165 and 164 which have bevel gear connection at 188 and 189 with the cross shaft 163 and operate together by a handle 190.

The rear carrier slides along the drive shaft 138 of the corner-lap discs and along the drive shaft 151 of the front and rear turnins. It supports the splined shaft 139 carrying the rearward corner-lap discs in bearings 192 and 193 (Figure 23) and also houses and positions along the shaft 138 the beveled gear 140 which drives the shaft 139.

The turret The turret 59 is best seen in Figures 1, 4, 6, 7, 8, 9 and 10. The body of the turret is keyed to the hollow shaft 85 which journals in the sides 82 and 83 of the frame and carries fastened to it the gear 101 (Figures 4 and 8) that is driven by the gear 100 fastened to the six-way Geneva wheel 99, which is already described by the driving shaft 84.

Each revolution of the main driving shaft 84 turns the Geneva wheel one-sixth of a revolution and there being two to one ratio between the gears 100 and 101 turns the turret one-third of a revolution.

The turret is provided with three arms 194 uniformly spaced around the body of the turret. These arms are axially offset from the axis of the turn table in order to make perpendicular engagement with the box forms 58 near the forward sides 58' (Figure 1) of the forms, and they preferably comprise forwardly slotted tubes fastened into the arm portions 195 of the body of the turret, and adapted to removably hold box forms of different size. Obviously more turret arms would require corresponding difference in the ways of the geneva.

The tubular arm is shown to enlarged scale in Figures 10 and 11. The tube 196 is slotted for some distance from its end and carries pivoted at its outer end at 197 a cross member .198 which is adapted to turn in ine with the tube, one side 199 of the cross bar passing into the slot 200 of the tube.

The upper surface of the cross bar 198 is preferably half round or curved to fit the half round or curved groove 201 in the bottom of the form and may also fit the inside of the tube 196. The cross bar when clamping a form fits the groove 201 and presents a flat bottom 202 even with the surface of the bottom of the form.

After the arm has been inserted and the cross bar turned perpendicular the form is clamped to place by screwing down upon a suitable nut 203.

A very slight adjustment is provided to permit exact registry between a form that may not be quite true and the registry roll.

A washer 204 next to the box form carries a short pin 205 on each side of the tubular arm 196. Each pin is shown held to place by a screw 206.

An upper washer or sleeve member 207 houses the pins 205 at 208 and is laterally extended at 209 and 210. Set screws 211 and 212 are provided in these lateral extensions and the form may be slightly adjusted angularly to exactly register with the surface of the registry roll by relative adjusment of these screws.

Registry roll The registry roll mechanism is best seen in Figures 2, 4, 7 and 17; The roll 54 is mounted between relatively rigid arms 60 and 60 to receive a glued wrap at the glueapplying roll and subsequently to swing over into position for presening it to a box on a temporarily stationary form 58 upon the turret.

The arm 213, shown diagrammatically in Figures 1 and 4, extends downwardly to present the roller 63 to engage the outside sur face of the cam 64 upon the shaft of the main cylinder of the glue machine. A spring 62 maintains the roller in engagement with the cam. The cam 64 moves synchronously with the motion of the main cylinder of the glue machine and with the operation of the turret permitting the spring 62 to swing the registry roll in against the forward corner 66 of the bottom of a box on the adjacent then stationary form and to maintain the roll against the bottom of the box as the turret moves forward to its next position.

During rolling contact of the registry roll upon the bottom of a box on the turret the cam 64 is barely out of contact with the roller 63, and contact makes again between the cam and roller as soon as the box has moved past the roll.

he left-hand arm 60 (Figure 17 comprises a gear casing and has a sleeve portion 214 adapted to turn in the left-hand bearing 215 and keyed at 216 to a sleeve 217 that is rigidly fastened at 218 to the rocker arm 60.

At the left-hand end of the shaft two simi- 1 lar intermittent driving gears 219 and 220 are mounted to turn rigidly with the shaft 87.

The inner driven gear 219 is keyed to the shaft 87 and the outer driving gear 220 is angular-1y adjustable with respect to the shaft being mounted upon a sleeve member 2 1 which is keyed to the shaft at 222 angularly adjustable with respect to the outer gear at 223.

The driven intermittent gears 225i and 225 mate with the gears 219 and 220 respectively and are integral respectively with the gears 226 and 227 that mesh with the gears 228 and 229 and are similar to one another, each with concave stop portion 230 (Figure 2) fitting the convex curvature 231 of the toothless pprtion of its driving gear 219 or 220 (Figure ll).

The gear 228 is keyed to a sleeve 232 that turns in a bearing 233 on the arm and is flanged beyond the bearing to form a cam 234. for operating the drag fingers.

A cam member 23:) is rigidly fastened to the face of the cam 234: by a suitable screw 236 for operating the outer j aw of the gripper 52.

The outer gear 229 turns with the shaft 237 and is made angularly adjustable with respect to this shaft by making it angularly adjustable with respect to a sleeve member 238 (like the member 221) that is keyed to the shaft 237. The adjustment is at 239.

The arrangement is such that the inner intermittent driving gear 219 turns the cam members 23st and 235 that operate the drag fingers and the outer jaw of gripper while the outer intermittent driving gear 228 turns the shaft 237 and the arms 240 and 2&1 which carry the gripper 52.

The arms 240 and 241 of the gripper are keyed to the shaft 237 at 212 and 243 and support the gripper in bearings 24: and 245.

The registry roll 54 turns with the shaft 237 so long as a clutch member 246, that turns with the shaft 237 but is slidable along the shaft somewhat, is in engagement with a cooperating clutch member 247 on a hub 2&8 of the roll 54 but is free to turn upon the shaft when this clutch opens. 7

Opening of the clutch is automatic when i the registry roll has swung somewhat toward the turret by reason of cam release of the outer end of a rod 219 pinned at 250 to the clutch member 2&6 through a slot 251 in the shaft and spring-pressed at 252 against a stationary cam member 253. The spring 252 is compressed between the bottom of a hole 254- in the shaft and the rod 2&9 fastened to the clutch member. his presses the clutch to release as soon as the end of the rod moves off the cam 253 which takes place when the roll swings over toward the turret, as best seen in Figures 5 and 17.

The gripper 52 (Figures 1, 7, 7 7 and 17 to 19) comprises outer and inner jaws 255 and 256 (Figures 7 and 7 that are rigidly connected respectively to an outside tubular member 256 turning in bearings 24st and 2 15 at the end of the arms 2%10 and 241 respectively. and to a rod member 259 inside the tube 256 and that carries a pinion 262 (Figures 17 and 18) which meshes with a toothed sector 263. This sector is on a bell crank 261 that is pivoted at 265 to the gripper a m 211 and has an arm 266 carrying a roller 267 which engages the cam member 235, being spring-pressed to engagement by a spring 268.

The tubular inner jaw member presents outwardly bent inner jaw portions 256 at intervals along its length to the blade outer jaw members that are inset in the rod 259. T he tubular member carries outside the bearing 24-3 at its right-hand end a pinion 269 (Figures 17 and 19), and the rod 259 is extended beyond the pinion 269 where it carries a collar 279 as an end bearing.

The pinion 269 meshes with a toothed sector 27.1 on a bell crank 272 pivoted at 273 to the gripper arm 240 and which carries a roller 27% engaging a stationary cam 275 to operate the'inner jaw. A spring 276 maintains the roller in engagement with its cam.

By inner jaw is meant the jaw having teeth adjacent the roll and by outer jaw is meant the jaw having teeth furthest from the roll. The outer jaw member is carried on a rod member inside the sleeve member carrying the outer jaw.

The arms 240 and 241 of the gripper are turned by the outer pair of intermittent gears 220 and 225 and the cams 23 1 and 235, operating the dra lingers 55 and the opening and closing of the gripper 52, respectively,

are operated by the inner pair of intermit tent gears 219 and 22st.

The pairs of intermittent gears are the same, one pair matching the other pair, so far as the teeth are concerned but are set diil'erently. The driving gear 219 is exactly the same as the driving gear 220, and the driven gears 22 1- and as gears are alike, but the periods of dwell of the driven gears take place at different times and these times are relatively adjustable.

The period of dwell of the driven gear operating the cams is always the same, that is always occurs at the same time with respect to the position of the driving shaft 87 of the registry mechanism, and the cams 235 and 23 1 operating respectively the opening and closing of the gripper and the operation of the drag-lingers never have to be changed in their positions with respect to the sleeve 232 or to the sleeve 238 after these positions have been once determined.

The opening and closing of the gripper takes place by reason of relative motion between the gripper arms 240, 24:1 and the cam 255. This can only take place when one of the pairs of intermittent gears is in its position of dwell and the other pair is rotating.

If the intern'iittent gears driving the cam are in dwell and the other pair of intermittent gears are rotating the arms of the gripper, then the relative motion between the cam and the roller 26? operating the opening and closing of the gripper is in one direction and when the other pair of intermittent gears is in dwell and the first in motion the relative movement between the roller and its cam is reversed.

There is no relative movement between the gripper arms and cam 235 when both pairs of intermittent gears are turning nor when they are both in dwell.

Cycle Starting at the closing of the grippers upon a wrap from the glue roll the arms 24:0 and 241 are at this time rotating. and the earn 235 is in position of dwell.

lVhen the roller 26? rolls up on the cam. the outer jaw 255 of gripper closes against the action of its spring, the jaws moving in very near to the surface of the registry roll.

All this time the arms are rotating and the right-hand intermittent gears operating the cams 235 and 234 are in position of dwell.

This dwell must be over before the grip per has moved past the shaft 56 carrying the drag fingers as the drag fingers are operated by rolling engagement between the cam 234 and a roller 277 of a sector 278. The sector 278 is pivoted at 279 to the supporting arm and spring-pressed at 280 to roller engagement with the cam, and meshes with a pinion 281 upon the shaft 56 carrying the drag fingers.

The gripper arms stop rotating when the left-hand intermittent gears reach their posi n of dwell and at this time the righthand intermittent gears turning the cams 23s. and 235 are out of dwell the driven gears 226 and 228 rotating.

The whole registry mechanism swings over toward the turret carried upon the relatively rigid rocker arms 60 and 60 under the action of the cooperating spring 62 and cam G l, this motion starting at or shortly after the arms carrying the gripper come to rest, and the registry roll is thus brought into,

engagement with the forward corner of a box upon a stationary form on the turret, the turret being in a position of dwell at the moment of engagement.

Just after engagement between the roll and box, the gripper opens due to the continued motion of the cam 235.

As the registry roll swings out of position near the glue-applying roll the clutch member 246 is released as already explained adapting the registry roll to turn freely with respect to the arms 01 the grippers.

Some little time after engagement between the turret and the registry roll the lefthand intermittent gears end their period of dwell and the gripper arms begin again to rotate.

In opening the gripper, the inner jaw 25.6 positioned by the stationary cam 275 at the right of the registry roll and the opening is effected by moving the outer jaw 255 outwardly away from the surface of the roll by engagement between the cam 235 and its roller 26% upon the sector 263 meshing with the pinion 262 fastened to the outer jaw of the gripper, which is fastened to the internal shaft or rod 259.

The inner gripper jaw 256 is moved outwardly by the stationary cam 275 and cooperating seetor 271 to a position to receive a new wrap atany suitable intermediate point between the turret engaging position and the position at which the gripper receives another wrap.

will be understood that the function of the gripper mechanism is to deliver the successive wraps from the glue roll to the registry roll mechanism for subsquent registered presentation to the bottoms of successive boxes on the turret, a registered presentation adapted to easy and exact adjustmentto accommodate boxes of ditterent depths.

The turret starts to move forward to its next position at or shortly after the opening of the gripper jaws.

This rolling of the registry roll because of its engagement by the revolving box bottom is accompanied by a bodily swinging movement of the roll first forward, until the registry roll passes the per 'iendicular from the axis of the turret to the bottom of the box and then rearward, and the return swinging motion continues by reason of the action of the cam 64 after the registry roll has left the bottom of the box, the registry roll gettin back into its original position at or somewhat before the time for gripping a new wrap, which begins a new cycle.

Automatic trip mechanism This is shown in Figures l, 21 and 22.

A rocker arm 285 mounted upon a shaft 282 journaled in standards 288 and 284 upon the top of the frame structure has a toe 81 which is adapted to register with slots in each of the box forms 58 upon the turret.

Every time the turret moves a form past the toe 81 of the rocker lever. a clutch member 287 shuts down the operation oi the registry roll and the feed of wraps it the toe register with the slot but the clutch member is prevented from operating and shut down is avoided if a box is on the form to cover the slot and engage the toe.

The clutch operates between the gear 9% driven continually by the gear 93 upon the main driving shaft- S l and the coaxial gear 102 which drives the mechanism of the registry roll and the main cylinder of the glue machine.

The clutch member is mounted in the hub 288 of the gear 94; and comprises a pin 289 spring-pressed at 290 to engagement with the gear 102 driving the mechanism of the registry roll and the main cylinder of the glue machine.

The gear 102 has a hole 291 adapted to register once each revolution with the pin 289. lhe pin has a rack 292 upon one side and a small pinion 293 pivoted within the hub 288, meshes with the pin rack 292 on one side and with a movable rack member 294 upon the other.

The rack member 294 is adapted to slide in and out within a suitable guiding hole 295, and has a sloping end 296 that extends beyond the face 297 of the hub 288 whenever the pin 289 enters the hole 291 in the gear 102.

The pin is adapted to be pulled out against the action of the spring by pushing in the outer end 296 of the rack member 294.

A rocker cam member 298 is pivoted at 299 between the side frame 82 and the hub 288 of the gear 94: and is adapted to swing into position to engage and press on the outer end of the rack member 29% causing the pin 289 to be withdrawn from the hole 291 in gear 102 which stops the operation of the feeding and registering mechanism when no box is present on the form.

If this engagement is effected the rack member 294 is pushed in and the pin 289 is held out against the action of its spring 290 and the clutch engagement between the gears 94 and 102 is open.

The rocking cam member 298 is springpressed at 300 to be maintained upon either side of its dead center with respect to the spring, a rod 301 carrying the spring and pivoted at 302 to the rocking cam member having sliding engagement through a sleeve 303 pivotally mounted in the side frame 82.

Nuts 301i and 305 on the outer end of the rod 301 limit the movement of the rocker member upon each side of its dead center under the influence of the spring.

The rocker member is rigid with respect to its pivot pin 299 which extends through to the inside of the frame 82 and carries at its inner end a lever 306. The outer end of this lever is pivotally connected to the link 307 which in turn is pivotally connected to the rocker arm 285 upon the shaft 282.

As the turret rotates one of the box forms moves into position at which the slot 286 would normally register with the toe 81 of the rocker arm 285.

If there be no box present the form clears the toe by means of the presence of the slot and in this event the cam 298 on the rock-er 299 maintains its position in the path of the rack member 29 i, and when the gripper upon the registry roll comes to its position of dwell the cam 298 engages and pushes in the rack member 294 and releases the clutch connection between the gears 9st and 102 by withdrawing the pin inwardly against the action of the spring 290.

If, however, a box be present on the form the bottom of the box engages the toe 81 of the rocker arm 285, rocking the arm to move the cam 298 out of path of the rack member 294, the spring 300 maintaining it in rocked position at which it will not engage the rack member to open the clutch.

The spring 300 snaps the cam member out of the path of the extending end of the rack member and in doing so holds the toe 81 away from the bottom of the box upon the form.

After the form has passed and before the next form comes up the tee is returned to its original position by engagement between a lug or projection 309 upon the hub of the gear 94 with a pin 310 upon the rocking cam member 298.

Tum-in clamps The turn-in clamps are seen in Figures 12, 13, 15 and 27 and the operating mechanism of the shaft is shown in Figures 2 and l.

The clamps open as the carriage moves up, the roller 153, (Figure 2), engaging a sloping portion 311 of the cam slot 154 to release the side turn-ins from the box and the roller 146 (Figure 4E) engaging a sloping portion 312 of the cam slot 147 to release the front and rear turn-ins from the last completed box.

The upward movement of the released box is arrested by its engagement with the bottom of the next box causing the box to stand still and be relatively pushed down through the space between the pressure block clamp members of the upwardly moving carriage. The box finally drops to the delivery belt.

The shaft 159 (Figure 2) operates the side turn-in clamps as already explained.

The turn-in clamps are substantially all the same except that the eccentric arms 313 operating the front and rear turn-ins (Figure 0) are longer than the corresponding arms 314 operating the side-ins (Figure 15) and that the pressure block of the rear turn-ins is modified to permit the use of blocks of different lengths.

Referring to the diagrammatic Figure 27 of the side turn-ins, the shaft 159 carries an eccentric 315 having a strap 316 with an arm 317 bored to receive a rod 318 having an eye 319 at its outer end and a head 320 screwed on its inner end.

The rod carries a heavy spring 321 which is pressed between the head 320 and a bushing 322 screwed into the end of the arm.

The eccentric rocks bell crank 323, which is pivoted at 324: to the back of one of the side carriers as 176 (Figures 12 and 15) and has fork connection 325 to the eye 319 of the rod 318. 

